package simpleExampleParam.before;public class Employee {         private int _monthlySalary;        private int _commission;        private int _bonus;    public static final int ENGINEER = 0;    public static final int SALESMAN = 1;    public static final int MANAGER = 2;     public Employee () {    }        public int payAmount(int type) {        switch (type) {            case ENGINEER:               return _monthlySalary;            case SALESMAN:               return _monthlySalary + _commission;            case MANAGER:               return _monthlySalary + _bonus;            default:               throw new RuntimeException("Incorrect Employee");        }    }}